On 9 February 2017 at 10:08, Evgeny Khramtsov <[email protected]> wrote: > Thu, 9 Feb 2017 09:41:43 +0000 > Dave Cridland <[email protected]> wrote: > >> Because the server has to send an empty string, not the absence of a >> challenge. > > When does it make a difference (i.e. empty string vs its absence)?
For a challenge, I can't think of a case, and I'm unclear if the specification (RFC 4422) allows it. For a response, it might. For initial data and additional data on success, it certainly does. Maybe worth hoping Kurt or Alexey pitch in here... Dave. _______________________________________________ Standards mailing list Info: https://mail.jabber.org/mailman/listinfo/standards Unsubscribe: [email protected] _______________________________________________
